We believe, sharing knowledge is a good way to have better solutions and improve general quality of software implementations. Using classes - with static methods only - is not Object Oriented programming. It begins when you start to apply the OO patterns...
RSS in Chrome
When it comes to complexity, to realize a browser enabled web application, Floorplan Manager (FPM) is still a great standardized User Interface, which is capable to manage sophisticated business requirements with server side programming approach. You can gain capabilities of SADL and FPM Wizards to create applications here also.